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ianarawjo
ChainForge
TypeScript2023–2025
ianarawjo / ChainForge

ChainForge

An open-source visual programming environment for battle-testing prompts to LLMs.

6Distinct people
15Mentions
0Explicit recommenders
3KGitHub stars
REPOSITORY AT A GLANCE

What to know before exploring

What it is

An open-source visual programming environment for battle-testing prompts to LLMs.

GitHub

Where it is used

No documented product use has been verified yet.

What people are saying

No recommendation phrase was found in the indexed comments.

No classified warning is attached to this page. Read the discussions before treating silence as approval.

Also in these discussions

Mentioned in the same Hacker News threads. That is not proof they are substitutes.

This week on Hacker News

Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 3:56:07 PM UTC.

No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.

Mentions over time

HN mentions by month15 dated mentions

Observed mentions: 2023-05-23 20:04:40 UTC to 2025-03-27 21:12:54 UTC.

01232023-05-01 00:00:00 UTC to 2023-06-01 00:00:00 UTC (exclusive): 2 mentions; 2 submissions, 0 commentsMay 20232023-06-01 00:00:00 UTC to 2023-07-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2023-07-01 00:00:00 UTC to 2023-08-01 00:00:00 UTC (exclusive): 3 mentions; 2 submissions, 1 comments2023-08-01 00:00:00 UTC to 2023-09-01 00:00:00 UTC (exclusive): 3 mentions; 0 submissions, 3 comments2023-09-01 00:00:00 UTC to 2023-10-01 00:00:00 UTC (exclusive): 2 mentions; 0 submissions, 2 comments2023-10-01 00:00:00 UTC to 2023-11-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2023-11-01 00:00:00 UTC to 2023-12-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2023-12-01 00:00:00 UTC to 2024-01-01 00:00:00 UTC (exclusive): 3 mentions; 1 submissions, 2 comments2024-01-01 00:00:00 UTC to 2024-02-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2024-02-01 00:00:00 UTC to 2024-03-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2024-03-01 00:00:00 UTC to 2024-04-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2024-04-01 00:00:00 UTC to 2024-05-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 commentsApr 20242024-05-01 00:00:00 UTC to 2024-06-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2024-06-01 00:00:00 UTC to 2024-07-01 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 comments2024-07-01 00:00:00 UTC to 2024-08-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2024-08-01 00:00:00 UTC to 2024-09-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2024-09-01 00:00:00 UTC to 2024-10-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2024-10-01 00:00:00 UTC to 2024-11-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2024-11-01 00:00:00 UTC to 2024-12-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2024-12-01 00:00:00 UTC to 2025-01-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2025-01-01 00:00:00 UTC to 2025-02-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2025-02-01 00:00:00 UTC to 2025-03-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2025-03-01 00:00:00 UTC to 2025-04-01 00:00:00 UTC (exclusive): 1 mentions; 1 submissions, 0 commentsMar 2025

Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.

View mention counts and date ranges
UTC ranges include their start and exclude their end. Select a period to filter the source evidence.
PeriodStart (UTC)End (exclusive, UTC)MentionsSubmissionsComments
May 20232023-05-01 00:00:00 UTC2023-06-01 00:00:00 UTC220
Jun 20232023-06-01 00:00:00 UTC2023-07-01 00:00:00 UTC000
Jul 20232023-07-01 00:00:00 UTC2023-08-01 00:00:00 UTC321
Aug 20232023-08-01 00:00:00 UTC2023-09-01 00:00:00 UTC303
Sep 20232023-09-01 00:00:00 UTC2023-10-01 00:00:00 UTC202
Oct 20232023-10-01 00:00:00 UTC2023-11-01 00:00:00 UTC000
Nov 20232023-11-01 00:00:00 UTC2023-12-01 00:00:00 UTC000
Dec 20232023-12-01 00:00:00 UTC2024-01-01 00:00:00 UTC312
Jan 20242024-01-01 00:00:00 UTC2024-02-01 00:00:00 UTC000
Feb 20242024-02-01 00:00:00 UTC2024-03-01 00:00:00 UTC000
Mar 20242024-03-01 00:00:00 UTC2024-04-01 00:00:00 UTC000
Apr 20242024-04-01 00:00:00 UTC2024-05-01 00:00:00 UTC000
May 20242024-05-01 00:00:00 UTC2024-06-01 00:00:00 UTC000
Jun 20242024-06-01 00:00:00 UTC2024-07-01 00:00:00 UTC101
Jul 20242024-07-01 00:00:00 UTC2024-08-01 00:00:00 UTC000
Aug 20242024-08-01 00:00:00 UTC2024-09-01 00:00:00 UTC000
Sep 20242024-09-01 00:00:00 UTC2024-10-01 00:00:00 UTC000
Oct 20242024-10-01 00:00:00 UTC2024-11-01 00:00:00 UTC000
Nov 20242024-11-01 00:00:00 UTC2024-12-01 00:00:00 UTC000
Dec 20242024-12-01 00:00:00 UTC2025-01-01 00:00:00 UTC000
Jan 20252025-01-01 00:00:00 UTC2025-02-01 00:00:00 UTC000
Feb 20252025-02-01 00:00:00 UTC2025-03-01 00:00:00 UTC000
Mar 20252025-03-01 00:00:00 UTC2025-04-01 00:00:00 UTC110

What Hacker News says

15 sources
"WebNN: Web Neural Network API" https://news.ycombinator.com/item?id=36158663 : > - Src: https://github.com/webmachinelearning/webnn W3C Candidate Recommendation Draft: > - Spec: https://www.w3.org/TR/webnn/ > WebNN API: https://www.w3.org/TR/webnn/#api : >> 7.1. The `navigator.ml` interface >> webnn-polyfill E.g. Promptfoo, ChainForge, and LocalAI all have abstractions over many models; also re: Google Desktop and GNU Tracker and NVIDIA's pdfgpt: https://news.ycombinator.com/item?id=39363115 promptfoo: https://github.com/promptfoo/promptfoo ChainForge: https://github.com/ianarawjo/ChainForge LocalAI: https://github.com/go-skynet/LocalAI
In Chrome is adding `window.ai` – a Gemini Nano AI model right inside the browser
This seems like a sheets implementation of something like ChainForge (https://github.com/ianarawjo/ChainForge). It's curious that Anthropic is entering the LLMOps tooling space ---this definitely comes as a surprise to me, as both OpenAI and HuggingFace seem to avoid building prompt engineering tooling themselves. Is this a business strategy of Anthropic's? An experiment? Regardless, it's cool to see a company like them throw their hat into the LLMOps space beyond being a model provider. Interested to see what comes next.
In Claude for Google Sheets
This seems like a sheets implementation of something like ChainForge (https://github.com/ianarawjo/ChainForge). It's curious that Anthropic is entering the LLMOps tooling space ---this definitely comes as a surprise to me, as both OpenAI and HuggingFace seem to avoid building prompt engineering tooling themselves. Is this a business strategy of Anthropic's? An experiment? Regardless, it's very cool to see a company like them throw their hat into the LLMOps space beyond being a model provider. Interested to see what comes next.
In Anthropic Claude for Google Sheets
In Show HN: Knit – A Better LLM Playground
I like the support for Vector DBs and LLaMa-2. I'm curious as to whether and what influences compelled PromptTools, and how it differs from other tools in this space. For context, we've also released a prompt engineering IDE, ChainForge, which is open-source and has many of the features here, such as querying multiple models at once, prompt templating, evaluating responses with Python/JS code and LLM scorers, plotting responses, etc (https://github.com/ianarawjo/ChainForge and a playground at http://chainforge.ai). One big problem we're seeing in this space is over-trust in LLM scorers as 'evaluators'. I've personally seen that minor tweaks to a scoring prompt can sometimes result in vastly different evaluation 'results.' Given recent debacles (https://news.ycombinator.com/item?id=36370685), I'm wondering how we can design LLMOps tools fo
Read the rest
r evaluation which both support the use of LLMs as scorers, but also caution users about their results. Are you thinking similarly about this question, or seen usability testing which points to over-trust in 'auto-evaluators' as an emerging problem?
In Show HN: PromptTools – open-source tools for evaluating LLMs and vector DBs
No problem! I guess I will make a plug myself --we've been working on a similar 'prompt engineering' tool, ChainForge (https://github.com/ianarawjo/ChainForge). It's targeted towards slightly different users and use cases than promptfoo --geared more towards early-stage, 'quick-and-dirty' explorations of differences between prompts and models for less experienced programmers, versus the kind of continuous benchmarking and verification testing power that promptfoo offers. I particularly like promptfoo's support for CI, which I haven't seen anywhere else, and is very important for developers pushing prompts into production (esp since OpenAI keeps updating their models every few months...).
In GPT-Prompt-Engineer
fatso784·May 23, 2023Submission

Show HN: ChainForge, a visual tool for evaluating LLM responses

Hey all! I've been developing a prompt engineering interface that helps users query LLMs with parametrized prompts and compare responses across models. It's an early demo, but already we've used it internally in my academic lab to evaluate and choose prompts for other research projects that involve building LLM applications. Let me know what you think, or if you encounter any bugs or issues. Blog post here: https://ianarawjo.medium.com/introducing-chainforge-a-visual...
1 points · Open discussion

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